CODE EXAMPLE FOR JAVASCRIPT

is palindrome

const isPalindrome = (str) => {
    
    const preprocessing_regex = /[^a-zA-Z0-9]/g,
    processed_string = str.toLowerCase().replace(preprocessing_regex , ""),
    integrity_check = processed_string.split("").reverse().join("");
    if(processed_string === integrity_check) return true
    else return false
         
        }

//if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)